HT6550A - Super I/O Controller

Holtek Microelectronics

The HT6550A by Holtek Microelectronics is a Super I/O Controller. Below is the official datasheet preview.

Datasheet Details

Part number	HT6550A
Manufacturer	Holtek Microelectronics
File Size	436.20 KB
Description	Super I/O Controller
Datasheet	HT6550A-HoltekMicroelectronics.pdf
Additional preview pages of the HT6550A datasheet.

The HT6550A super Multi I/O chip, is an advanced CMOS single chip controller offering the complete I/O solutions for the IBM AT environments.

100% compatible to IBM PC AT.
Fully uPD765b and IBM.
BIOS compatible floppy disk controller.
48mA floppy drive interface buffers.
Support two floppy drives with capability of supporting up to four drives with an external decoder.
Support 360K/720K/1.2M/1.44M formats.
Support 250Kb/s, 300Kb/s, 500Kb/s data rate.
Digital data separator eliminates critical analog adjustments.
Two 16450/8250 compatible UARTs.
In.

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Published: Dec 23, 2020 |